And Vincent, despite his indecipherable grumbling about being snuggled up to, disappears into peaceful, deep breathing almost as quickly as the whole interruption had started. Robin waits a couple of moments, fending off the psychological chill still crawling down his neck just long enough to be completely, resoundingly sure.

And then he crawls over to Vincent's other side, slipping in close and under the blankets with nary a disturbance. Vincent even moves his arm for Robing to get in.

The difference is like night and day. With someone at his back, the pangs of anxiety winding out of Robin vanish and are quickly replaced with a heavy cloud of sleep. No more nightmares, hopefully, for the rest of the subterranean night.